diff --git a/src/api/wix/WixToolset.Data/Symbols/SymbolDefinitions.cs b/src/api/wix/WixToolset.Data/Symbols/SymbolDefinitions.cs
index facca956a..64f51162e 100644
--- a/src/api/wix/WixToolset.Data/Symbols/SymbolDefinitions.cs
+++ b/src/api/wix/WixToolset.Data/Symbols/SymbolDefinitions.cs
@@ -322,6 +322,9 @@ public static IntermediateSymbolDefinition ByType(SymbolDefinitionType type)
                 case SymbolDefinitionType.FileSFPCatalog:
                     return SymbolDefinitions.FileSFPCatalog;
 
+                case SymbolDefinitionType.HarvestFiles:
+                    return SymbolDefinitions.HarvestFiles;
+
                 case SymbolDefinitionType.Icon:
                     return SymbolDefinitions.Icon;
 
diff --git a/src/test/burn/WixTestTools/PackageVerifier.cs b/src/test/burn/WixTestTools/PackageVerifier.cs
index 4545b9ec2..76bc17ab5 100644
--- a/src/test/burn/WixTestTools/PackageVerifier.cs
+++ b/src/test/burn/WixTestTools/PackageVerifier.cs
@@ -63,6 +63,12 @@ public string GetProperty(string name)
             return row.Value;
         }
 
+        public string GetControlText(string dialog, string control)
+        {
+            var row = this.WiData.Tables["Control"].Rows.Cast<ControlRow>().Single(r => r.Dialog == dialog && r.Control == control);
+            return row.Text;
+        }
+
         public bool IsInstalled()
         {
             var productCode = this.GetProperty("ProductCode");
diff --git a/src/test/msi/TestData/UIExtensionTests/LocalizedWixUI/LocalizedWixUI.wixproj b/src/test/msi/TestData/UIExtensionTests/LocalizedWixUI/LocalizedWixUI.wixproj
new file mode 100644
index 000000000..cb8f31bb4
--- /dev/null
+++ b/src/test/msi/TestData/UIExtensionTests/LocalizedWixUI/LocalizedWixUI.wixproj
@@ -0,0 +1,14 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk">
+  <PropertyGroup>
+    <UpgradeCode>{4D188568-1CCF-4EEE-BC27-17C3DCC83E58}</UpgradeCode>
+    <ProductComponentsRef>true</ProductComponentsRef>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="..\..\Templates\Product.wxs" Link="Product.wxs" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="WixToolset.UI.wixext" />
+    <PackageReference Include="WixToolset.Util.wixext" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/test/msi/TestData/UIExtensionTests/LocalizedWixUI/LocalizedWixUI.wxs b/src/test/msi/TestData/UIExtensionTests/LocalizedWixUI/LocalizedWixUI.wxs
new file mode 100644
index 000000000..083905386
--- /dev/null
+++ b/src/test/msi/TestData/UIExtensionTests/LocalizedWixUI/LocalizedWixUI.wxs
@@ -0,0 +1,13 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:ui="http://wixtoolset.org/schemas/v4/wxs/ui" xmlns:util="http://wixtoolset.org/schemas/v4/wxs/util">
+    <Fragment>
+        <ComponentGroup Id="ProductComponents">
+            <Files Include="**" />
+        </ComponentGroup>
+        
+        <ui:WixUI Id="WixUI_FeatureTree" />
+        <util:FailWhenDeferred />
+    </Fragment>
+</Wix>
diff --git a/src/test/msi/WixToolsetTest.MsiE2E/UIExtensionTests.cs b/src/test/msi/WixToolsetTest.MsiE2E/UIExtensionTests.cs
new file mode 100644
index 000000000..093ae7cef
--- /dev/null
+++ b/src/test/msi/WixToolsetTest.MsiE2E/UIExtensionTests.cs
@@ -0,0 +1,26 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.MsiE2E
+{
+    using Xunit;
+    using Xunit.Abstractions;
+
+    public class UIExtensionTests : MsiE2ETests
+    {
+        public UIExtensionTests(ITestOutputHelper testOutputHelper) : base(testOutputHelper) { }
+
+        [Fact]
+        public void CanBuildLocalizedWixUIPackageWithDefaultUSEnglish()
+        {
+            var product = this.CreatePackageInstaller("LocalizedWixUI");
+
+            var nextButton = product.GetControlText("WelcomeDlg", "Next");
+            var cancelButton = product.GetControlText("ExitDialog", "Cancel");
+            var updateButton = product.GetControlText("VerifyReadyDlg", "Update");
+
+            Assert.Equal("&Next", nextButton);
+            Assert.Equal("Cancel", cancelButton);
+            Assert.Equal("&Update", updateButton);
+        }
+    }
+}
diff --git a/src/wix/WixToolset.Core/Link/CollateLocalizationsCommand.cs b/src/wix/WixToolset.Core/Link/CollateLocalizationsCommand.cs
index d5c698380..20f7e83aa 100644
--- a/src/wix/WixToolset.Core/Link/CollateLocalizationsCommand.cs
+++ b/src/wix/WixToolset.Core/Link/CollateLocalizationsCommand.cs
@@ -65,7 +65,7 @@ private Localization Merge(Localization existingLocalization, Localization local
                 }
             }
 
-            return new Localization(existingLocalization.Codepage ?? localization.Codepage, existingLocalization.SummaryInformationCodepage ?? localization.SummaryInformationCodepage, existingLocalization.Culture, variables, controls);
+            return new Localization(existingLocalization.Location, existingLocalization.Codepage ?? localization.Codepage, existingLocalization.SummaryInformationCodepage ?? localization.SummaryInformationCodepage, existingLocalization.Culture, variables, controls);
         }
     }
 }